Permanent underground installation lawn sprinkler



F. E. SOCALL 2,533,969

PERMANENT UNDERGROUND INSTALLATION LAWN SPRINKLER Dec. 12, 1950 FiledMarch 12, 1947 3/ as a? 2, 4/ 27 INVENTOR. HoeE/vrE. SOC/ILL a1 WWII?ATTORNEYS Patented Dec. 12, 1950 OFFICE PERMANENT UNDERGROUND INSTALLA-TION LAWN SPRINKLER Florent E. Socall, Detroit, Mich.

Application March 12, 1947, Serial No. 734,074

1 Claim.

This invention relates to underground lawn sprinkler installations.

It is an object of the present invention to provide a lawn sprinklerhead which is of simple construction, easy to install and which has aminimum number of parts to maintain.

It is another object of the present invention to provide a sprinklerhead which can be adjusted to govern the flow of water leaving the sameand the area to be covered by the water.

For other objects and for a better understanding of the invention,reference may be had to the following detailed description, taken inconnection with the accompanying drawing, in which Fig. 1 is a top planview of the sprinkler head 7 of the invention.

Fig. 2 is a cross-sectional view, of the sprinkler head of the inventionand taken on line 2-2 of Fig. 1 and looking in the direction of thearrows thereof.

Fig. 3 is a cross-sectional view of the dispersing disk positioned onthe upper end of the sprinkler head.

Referring now to the drawings wherein like reference characters denotecorresponding arts the improved lawn sprinkler of this inventionincludes a sprinkler head l adapted by means of a threaded socket to beconnected to the upper end of a water supply riser. The top end of thissprinkler head has an enlarged flange 29 on the upper end with adepression or recess 2'! in its top face. Extending upwardly from thesocket 25 is a threaded central bore 28. Also below the recess 21 is arecess 29 of less diameter and countersunk to receive a dispersing plateor disk 3| having a plurality of serrations in a beveled under surfacethereof engaging with the countersunk face of the recess 29. Anattaching screw 32 extends downwardly through the disk 3| and into thethreaded central bore 28 to secure the disk in tight engagement with thecounter-sunk surface of the recess 29. A gasket 33 is positioned underthe head of the screw 32 to prevent leakage through the disk 3!. Thefastening screw 32 extends only part way down through the opening 28.Below the lower end of the screw 32 there is extended a hole 94 whichenters a vertically extending opening or passage 35 for delivering waterto the countersunk recess 29. This hole 34 is adapted to receive a valveextension 22 on an adjusting screw 36. The adjusting screw 36 can beadjusted through a laterally extended threaded opening 37 within alaterally extending projection 38 of the head. By this adjusting screw36 the flow of water through the head can be governed whereby to varythe area of ground to be sprinkled. A cap screw 39 is threaded into theend of the opening 31 to seal the opening against leakage which may passthe adjusting screw 36.

Within the large recess 27 in the top of the flange 26 and surroundingthe smaller recess 29 is an annular groove 4| adapted to receive anydirt or foreign matter so as to prevent the same from passing downwardlybetween the openings within the disk 3! in such a manner as to fill thesprinkler head with dirt. Dirt can be periodically removed from thisgroove 4| While various changes may be made in the detail constructionof these sprinkler heads, it shall be understood that such changes shallbe within the spirit and scope of the present invention as defined bythe appended claim.

I claim:

In a sprinkler head, the combination which comprises a main body havinga recess with an outwardly inclined peripheral surface in the upper endand having a threaded bore extended downwardly from the recess, saidbody having a threaded supply pipe receiving socket in the lower endcommunicating with the threaded bore and aligned therewith, a dispersingdisk having a radially slotted conical peripheral surface correspondingwith the inclined peripheral surface of the body, positioned in therecess, means removably mounting the disk on the body, said body havinga vertically disposed passage parallel to the threaded bore providingcommunicating means between the supply pipe socket and recess by meansof the said threaded bore with which the said passage is connected by alaterally positioned opening, and said body also having a laterallydisposed threaded opening extended from the outer surface thereofthrough the said vertically disposed passage and aligned with theopening connecting the said vertically disposed passage to the threadedbore, an adjusting screw, threaded in the said laterallv disposedopening and having a point positioned to extend into the openingconnecting the said vertically disposed passage with the threaded borefor regulating the flow of fluid through the sprinkler head, and a capscrew threaded into the outer end of the said laterally disposed openingproviding a closure therefor.

FLORENT E. SOCALL.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 510,496 Anderson Dec. 12, 1893984,082 Edgerton Feb. 14, 1911 1,492,941 Sherman et al May 6, 19241,564,587 Kreiziger Dec. 3, 1925 1,767,028 Williams June 24, 19301,788,492 Nelson Jan. 13, 1931 1,931,761 Hertel Oct. 24, 1933 1,996,545Knowlton Apr. 2, 1935 2,085,854 Hathaway et al July 6, 1937

